Apparatus for manufacturing mineral wool



S2 sheets-sheen 1.

('No Modl.)

H. KENNEDY &lJ.fw. HIGG y APPARATUS FOR MANUFACTURING MINERAL WOOL. No. 328,227.

Patented Oct. 13, 1885.

JW @M 2. w .n s .m m s 2S G G I H W l & Y D E N N E K. E um M m APPARATUS FOR MANUFAGTURING MINERAL WOOL l, www@ @if @A UNITED STATES vPATENT Ormea HUGH KENNEDY AND JOHN w. HIGGs, or sHAEPsBURG, AssiGNoEs rro THE rirrsnnne MINERAL WOOL COMPANY, or ETNA, PENNSYLVANIA.

APPARATUS FOR MANUFACTURING MINERALwO-QL.

' SPECIFICATION forming part of Letters Patent No. 328,227, dated October 13, Y1.885.

Application filed June l, 1895. Serial No. 167, 355. (No model.) n

. To all whom it may concern:

Be it known that we, HUGH KENNEDY and JOHN W. HIGGs, of Sharpsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Apparatus for Manufacturing Mineral Wool; and we do hereby declare the following to be a full, clear, and exact description' thereof, reference being had to the accompanying draw- IO ings, in which- Figure l is a perspective View of o'ne form of our improved device. Fig. 2 is aplan view.' Fig. 3 is a section on the line 'w w of Fig. 2. Figs. 4 and 5 are respectively plan and side views illustrating the operation. Figs. 6, 7, 8, and 9 are views of modifications, Fig. 7 bef ing a section Ona: .e of Fig. 8, 8 a section on y y of Fig. 7, and 9 a section on zz of Fig. 8. Figs. 10 and -11 are respectively a longitudinal section and a perspective View of an other modification.

Like letters of reference indicate like parts.

Our invention consists in apparatus for converting a stream of molten slag into fiber orV mineral woolby treating itwith a jet or jets of steam or air which surround it on all sides, preferably giving the projected stream of wool a swirling or twisting motion.

Referring to Fig. 1, a indicates asteam-pipe 3o having a series of five jet-pipes providcdwith ilattened discharge ends or orifices; The central jet-pipe, 1, has its flattened orifice extending in a horizontal direction. On either side, and at or about the sameJeveL' is a jet-pipe, 2, the attened orifice of which extends in a vertical direction, and above the jetpipe 2 are two other` jetpipes, 3, lthe flattened orifices of which extendin a horizontal direction, but are vnot on the same level, so that the stream or 4o jets therefrom shall'tend. to pass each other at the point of meeting. The ends of the jetpipes 1 and 2 turnupward, and the ends of the pipes 3 turn inward toward each other and extend some distance beyondA the ends of the pipes 1 and 2, so that there is formed between `so Figs. 4 and 5, where, it will b'e observed, the

the ends of the jet-pipes as'pace, 4, vinto whichV stream of molten slag from the trough b falls into the space 4 in front of the en d of the central or main jet-pipe,'fb, where, being caught. by the jet of steam from said pipe, it is projected upward and outward. rlhe tendency of the jet 1 is to spread the stream of slag into afan shape, 'and 'to convert only the central portion into iiber, while the sides would be turned into granules or shot. This is prevented by the jets from the pipes 2,- which, meeting the 6o spreading stream of slag projected by the pipe 1, force it inward and keep it within the range of action ofthe jet from the pipe 1, as well as themselves acting upon it to convert it into fiber. The upward tendency of the stream of slag thus given to it by the pipes 1 and 2brings it within the range of the jets from the pipes 3, which, as they do not exactly register, give it a swirling or twisting motion and hold it down within the range of action ofthe jets from 7o the pipes 1 and 2.- The jets from the pipes 1, 2l and 3 all converge to a point, 8, some inches away from the ends of the pipes 3, where they practically unite into a single stream, and from that point the stream of molten -slag spreads 7 5. outward into a conical shape and enters the' end of the receiving-conduit c. During vthe passage ofthe slag from the point 4 to the centering-point 8 of the jets it is thoroughly converted into fiber, so that there are so few gran- 8o ules formed that the entire-product of the blow is salable as No. 17 wool.

In Figs. 6, 7, 8, and 9 we show a/modified construction, which consists in a hollow casting, d, to which the steam is supplied by a pipe, 8 5 d', and which is provided with a central opening, d, and a series of converging jet openings .or slots, 5,6, and 7, extendingrthrough the sides around the centraL Opening, dl. When' applied for use, the' casting d is `placed in an 9o Ainclined position, Y

as shown in Figs. 6 and 7, under the slag-trough b. A stream of slag then falls through the Opening dz, where itencountersthe jet of steam from the slot 5, which in this instance answers tothe jet-pipe 1 o f the .95 'rst construction." The stream projcotedby -the jet 5 is treated on the other three sides by the jets from the slots 6 and 7. The anglesof inclination of the slots are different, but they are caused toconverge to a point, 8, 4asin the roc c treated and converted into mineral wool.

first construction. By giving a slight lateral 4slant to either of the other two opposite jets a Supplies steam, and an inclined jctopening,.

e3, at the other end, which gives to the jet of steam a conical shape.

In all the constructions named the stream of molten slag is enveloped ou all sides by jets of steam or air, which cause it to be thoroughly Weprefer the construction shown in Figs. 1 to 5', as we have had it in practical use for some time, and it has been proven to be a thorough and ecient means of carrying our; invention into practice.l

"We-prefer to use the construction of apparatus which gives a swirling motion to the y projected stream of slag,for the reason .that

the thorough treatment of the, slag is thereby insured, and the ber produced will be lighter and better;

We do not desire to claim the method herein described, as that forms the subject-matter of a separate application.

What We claim as our invention, and desire to secure by Letters Patent, is`

1. In the manufacture of mineral wool, a

converting device having a central jetfpipe for spraying the slag-.and side jet-pipes for pre- 'venting the lateral spread of the sprayed stream, substantially as and for the purposes described.

2. In the manufacture of mineral wool, a`

converting device having a central jet-pipe for spraying the slag, side jet-pipes for preventing the lateral spread of the sprayed stream; and other jet-pipes for giving a twisting Inotion to the same, substantially as and for the purposes described'. n

In testimony whereof 'we have hereunto set our hands this 23d day of May, A. D. 1885.

` Y HUGH KENNEDY. V f JOHN W. HIGGS.-

Witnesses: y

H. H. SALLADE, J As. R. DARRAGH. 

